Omega DPF20 User guide

Download

Page 1

User’s Guide

Shop online at

omega.com

e-mail: [email protected]

For latest product manuals:

www.omegamanual.info

DPF20 Series

Panel Meter for

Frequency, Rate, Total

or Period Counter

6-Digit, 1⁄8 DIN Panel Mount

Page 2

www.omega.com [email protected]

Servicing North America:

U.S.A. Omega Engineering, Inc. Headquarters: Toll-Free: 1-800-826-6342 (USA & Canada only)

Customer Service: 1-800-622-2378 (USA & Canada only) Engineering Service: 1-800-872-9436 (USA & Canada only) Tel: (203) 359-1660 Fax: (203) 359-7700 e-mail: [email protected]

For Other Locations Visit omega.com/worldwide

The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves the right to alter specications without notice.

Page 3

WARRANTY/DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 61 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal five (5) year product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product.

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service Department will issue an Authorized Return (AR) number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including but not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion; or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA’s control. Components in which wear is not warranted, include but are not limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither assumes responsibility for any omissions or errors nor assumes in accordance with information provided by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by it will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESS OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total liability of OMEGA with respect to this order, whether based on contract, warranty, negligence, indemnification, strict liability or otherwise, shall not exceed the purchase price of the component upon which liability is based. In no event shall OMEGA be liable for consequential, incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical applications or used on humans. Should any Product(s) be used in or with any nuclear installation or activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility as set forth in our basic WARRANTY / DISCLAIMER language, and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product(s) in such a manner.

liability for any damages that result from the

use of its products

RETURN REQUESTS/INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return package and on any correspondence.

The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent breakage in transit.

FOR WARRANTY RETURNS, please have the following information available BEFORE contacting OMEGA:

1. Purchase Order number under which the product was PURCHASED,

2. Model and serial number of the product under warranty, and

3. Repair instructions and/or specific problems

relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our customers the latest in technology and engineering.

OMEGA is a registered trademark of OMEGA ENGINEERING, INC.

© Copyright 2018 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the

prior written consent of OMEGA ENGINEERING, INC.

FOR NON-WARRANTY REPAIRS, for current repair charges. Have the following information available BEFORE contacting OMEGA:

1. Purchase Order number to cover the COST of the repair,

2. Model and serial number of the product, and

3. Repair instructions and/or specific problems

relative to the product.

consult OMEGA

Page 4

DPF20

Frequency, rate, total or period counter

1. Panel meter DPF20

Counter, ratemeter and periodmeter, 96 x 48 mm (1/8 DIN)

Instruction Manual

Panel meter 96 x 48 mm (1/8 DIN) and 6 digits with 14 mm digit height, congurable with 5 impulse counter modes (see secon 1.2), 2 ratemeter modes (see secon 1.3) and a 1 periodmeter mode (see secon

1.4).

Highly congurable, accepts all types of sensors (NPN, PNP, pushpull, Namur, inducve, pick-up, mechanical, TTL, CMOS, ...) including quadrature signals (single and bidireconal encoder signals).

Reading from 999999 to -199999 with decimal point, scalable reading with congurable mulplier factor (1 to 999999) and congurable divider factor (1 to 999999). Includes internal pull-up and pull-down resistors, congurable trigger levels, detecon by rising or falling edge, excitaon voltage congurable from 5 Vdc to 18 Vdc.

Opons for output and control with 1, 2 and 3 relays, transistor outputs, SSR drive controls, isolated analog outputs, communicaons in Modbus RTU, RS-485 ASCII and RS-232. Special opons with 4 and 6 relay outputs.

Independent alarms congurable as maximum or minimum, with 1 or 2 setpoints per alarm, hysteresis, independent acvaon and deacvaon delays and control for inverted relay.

Index

1. Panel meter DPF20 . . . . . . . . . . . . . . . . . . . . . . . 4

1.1 How to order . . . . . . . . . . . . . . . . . . . . . . . . 5

1.2 Impulse counter modes . . . . . . . . . . . . . . . . . . 5

1.3 Ratemeter modes. . . . . . . . . . . . . . . . . . . . . . 5

1.4 Periodmeter mode . . . . . . . . . . . . . . . . . . . . . 5

1.5 Funcons included . . . . . . . . . . . . . . . . . . . . . 5

1.6 Front view . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.7 Power connecons . . . . . . . . . . . . . . . . . . . . . 6

1.8 Sensor conguraon and connecons . . . . . . . . . . 6

1.9 Rear view . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.10 Signal connecons . . . . . . . . . . . . . . . . . . . . 6

1.11 Technical specicaons . . . . . . . . . . . . . . . . . . 7

1.12 Mechanical dimensions (mm) (in) . . . . . . . . . . . . 7

1.13 Funcon ‘Trigger Sense’ . . . . . . . . . . . . . . . . . 8

1.14 Funcon ‘cycle counter’ . . . . . . . . . . . . . . . . . 8

1.15 ‘SLOW’ mode . . . . . . . . . . . . . . . . . . . . . . . 8

1.16 ‘FAST’ mode . . . . . . . . . . . . . . . . . . . . . . . . 8

1.17 How to operate the menus. . . . . . . . . . . . . . . . 9

1.18 Messages and errors . . . . . . . . . . . . . . . . . . . 9

1.19 Conguraon menu. . . . . . . . . . . . . . . . . . . . 10

1.19.1 Inial set-up . . . . . . . . . . . . . . . . . . . . . .10

1.19.2 Conguraon for ‘cn.1’ . . . . . . . . . . . . . . . .10

1.19.3 Conguraon for ‘cnq.2’ . . . . . . . . . . . . . . . 11

1.19.4 Conguraon for ‘cnI.3’. . . . . . . . . . . . . . . . 11

1.19.5 Conguraon for ‘cnc.4’ . . . . . . . . . . . . . . . 11

1.19.6 Conguraon for ‘cnd.5’ . . . . . . . . . . . . . . . 12

1.19.7 Conguraon for ‘rt.6’ . . . . . . . . . . . . . . . . 12

1.19.8 Conguraon for ‘rtq.7’. . . . . . . . . . . . . . . . 12

1.19.9 Conguraon for ‘Prd.8’ . . . . . . . . . . . . . . . 13

1.19.10 Sensor conguraon. . . . . . . . . . . . . . . . . 13

1.19.11 Alarms . . . . . . . . . . . . . . . . . . . . . . . . 15

1.19.12 Fast access . . . . . . . . . . . . . . . . . . . . . . 16

1.19.13 Super fast access . . . . . . . . . . . . . . . . . . . 16

1.19.15 Menu ‘On Power Up’ . . . . . . . . . . . . . . . . 16

1.19.14 Menu ‘Key LE’ . . . . . . . . . . . . . . . . . . . . 16

1.19.16 Menus ‘Overrange / underrange’. . . . . . . . . . 17

1.19.17 Le zeros . . . . . . . . . . . . . . . . . . . . . . .17

1.19.18 Vexc. control . . . . . . . . . . . . . . . . . . . . .17

Front protecon IP65. Connecons by plug-in screw terminals. For industrial applicaons.

• ‘Fast access’ menu to selected funcons, accessible with key UP (5)

(see secon 1.19.12)

• Funcon ‘On power up’ for system protecon on rst ‘cold’ start-up or automac reset (see secon 1.19.15)

• Special ‘FAST’ mode for fast counng applicaons (see secon 1.16)

• Special ‘SLOW’ mode for slow ratemeter applicaons (low frequency applicaons) (see secon 1.15)

• Direct conguraon for most usual sensor, at the ‘SnSr / Auto’ menu

(see secon 1.19.10)

• Funcon ‘Trigger Sense’ helps to detect the correct trigger level (see

secon 1.13)

Mulple display lters, memory for maximum and minimum reading, password protecon, 5 brightness levels.

1.19.19 Funcon ‘Password’ . . . . . . . . . . . . . . . . .17

1.19.20 Factory reset . . . . . . . . . . . . . . . . . . . . .17

1.19.21 Firmware version. . . . . . . . . . . . . . . . . . . 17

1.19.22 Brightness . . . . . . . . . . . . . . . . . . . . . . 17

1.19.23 Access to oponal modules . . . . . . . . . . . . .17

1.20 Full conguraon menu . . . . . . . . . . . . . . . . . 18

1.21 Factory conguraon . . . . . . . . . . . . . . . . . . .21

1.22 To access the instrument . . . . . . . . . . . . . . . . .22

1.23 Modular system . . . . . . . . . . . . . . . . . . . . . .22

1.24 Precauons on installaon . . . . . . . . . . . . . . . .23

1.25 CE declaraon of conformity. . . . . . . . . . . . . . . 23

2. Output and control modules . . . . . . . . . . . . . . . . . 24

2.1 Módules R1, T1 and SSR . . . . . . . . . . . . . . . . . .24

2.2 Module AO . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.2.1 Conguraon menu . . . . . . . . . . . . . . . . . . 26

2.2.2 Error codes . . . . . . . . . . . . . . . . . . . . . . . 26

2.2.3 Factory conguraon . . . . . . . . . . . . . . . . . .26

2.3 Module RTU. . . . . . . . . . . . . . . . . . . . . . . . . 27

2.3.1 Accessible registers . . . . . . . . . . . . . . . . . . . 27

2.3.2 Conguraon menu . . . . . . . . . . . . . . . . . . 28

2.3.3 Excepon codes. . . . . . . . . . . . . . . . . . . . . 28

2.3.4 Descripon and example for Modbus RTU registers 29

2.4 Module S4. . . . . . . . . . . . . . . . . . . . . . . . . . 30

2.4.1 Accessible registers . . . . . . . . . . . . . . . . . . . 30

2.4.2 Conguraon menu . . . . . . . . . . . . . . . . . . 31

2.4.3 Factory conguraon . . . . . . . . . . . . . . . . . .31

2.4.4 Frame types . . . . . . . . . . . . . . . . . . . . . . .32

2.4.5 Frame structure. . . . . . . . . . . . . . . . . . . . . 32

2.4.6 Error codes . . . . . . . . . . . . . . . . . . . . . . . 32

2.4.7 Frame examples. . . . . . . . . . . . . . . . . . . . . 33

2.4.8 CRC calculaon . . . . . . . . . . . . . . . . . . . . .33

2.5 Module S2. . . . . . . . . . . . . . . . . . . . . . . . . . 34

2.6 Modules R2, R4 and R6. . . . . . . . . . . . . . . . . . . 34

2.6.1 Conguraon menu . . . . . . . . . . . . . . . . . . 35

2.6.2 Factory conguraon . . . . . . . . . . . . . . . . . .35

3. How to open and close. . . . . . . . . . . . . . . . . . . . . 36

3.1 How to open the housing . . . . . . . . . . . . . . . . . 36

3.2 How to close the housing . . . . . . . . . . . . . . . . . 37

Page 5

DPF20

Frequency, rate, total or period counter

1.1 How to order

Instruction Manual

Model Power Opon 1 Others

DPF20

HV- -

-HV (85-265 Vac/dc)

-LV (11/60 Vdc,

24 Vac, 48 Vac)

(1 relay)

-R1

-AO (analog output)

-RTU (Modbus RTU)

-S4 (RS-485)

-S2 (RS-232)

-T1 (1 transistor)

-SSR (1 SSR drive)

- (empty)

Opon 2

1.2 Impulse counter modes

The instrument allows for 5 selectable impulse counter modes :

• Counter (‘cn.1’) (see secon 1.19.2)

• Counter quadrature (‘cnq.2’) (see secon 1.19.3)

• Counter with inhibion (‘cnI.3’) (see secon 1.19.4)

• Counter with control add / substract (‘cnc.4’) (see secon 1.19.5)

• Counter dierenal (‘cnd.5’) (see secon 1.19.6)

Congurable up or down counng, ‘reset’ at rear terminals, front key and/or at alarm acvaon. Congurable ‘Preset’ value. Relay acvaon and deacvaon delays.

Alarm funcons with ‘return to preset’ or ‘reset to 0’ generate cycles of counng (instrument counts from ‘preset’ value to alarm value in never ending cycle). The instrument provides memory of cycles counter.

Scalable reading with congurable mulplier factor (1 to 999999) and congurable divider factor (1 to 999999). Memory retenon in case or power loss. Retains conguraon and last reading.

Counng frequency up to 250 KHz, in ‘FAST’ mode (see secon 1.16).

Opon 3

-NBT (no buons)

-GN (green led)

1.5 Funcons included

Funcons included Secon

‘Fast access’ yes 1.19.12

‘SLOW’ mode yes, for slow frequencies 1.15

‘FAST’ mode yes, for fast counng 1.16

Mulplier and divider from 1 to 999999 1.19.2

Reset congurable

Preset yes 1.19.2

Trigger level congurable 1.19.10

‘Trigger Sense’ funcon helps to set the trigger 1.13

Sensor selecon by menu 1.19.10

Cycle counter 1.14

yes (front, rear and linked to alarm acvaon)

1.19.14 and

1.10 and

1.19.11

1.3 Ratemeter modes

In ratemeter mode the reading is proporonal to the measured frequency. The instrument allows for 2 selectable ratemeter modes :

• Ratemeter (‘rt.6’) (see secon 1.19.7)

• Ratemeter quadrature (‘rtq.7’) (see secon 1.19.8)

The ratemeter mode has a single input channel, with scalable reading. The quadrature ratemeter mode has 2 inpur channels available for detecon of sense of turn when working with quadrature signals. Scalable reading with congurable mulplier factor (1 to 999999) and congurable divider factor (1 to 999999).

For low frequency applicaons, the ‘SLOW’ mode provides the best response me for each applicaon (see secon 1.15).

Maximum frequency up to 500 KHz and minimum frequency down to de 0.001 Hz (1 mHz) with ‘SLOW’ mode acve.

1.4 Periodmeter mode

Reading is proporonal to the signal period. Scalable reading with congurable mulplier factor (1 to 999999) and congurable divider factor (1 to 999999).

For applicaons with long periods (slow frequencies), the ‘SLOW’ mode provides the best response me for each applicaon (see sec-

on 1.15).

Retenon memory yes, recovers with power 1.11

‘On Power Up’ yes

Excitaon voltage congurable 1.19.10

Display lters recursive

Memory max., min., cycles 1.19.12

Password

Alarms

Display brightness 5 levels

Table 1 - Funcons included

blocks access to conguraon menu

double setpoints acvaon delays deacvaon delays hysteresis inverted relays locked alarms

1.19.15

1.19.7 and

1.19.8 and

1.19.9

1.19.19

1.19.11

1.19.22

Page 6

DPF20

Frequency, rate, total or period counter

Instruction Manual

1.6 Front view

Alarms

Logo

Buon ‘LE’

Front reset

(see secon 1.19.14)

Buon ‘UP’

‘Fast access‘

(see secon 1.19.12)

1.7 Power connecons

Earth connecon - Although a terminal is provided for earth connecon, this connecon is oponal. The instrument does not need earth connecon for correct operaon nor for compliance with the security regulaons.

Buon ‘SQ’

‘Conguraon menu’

(see secon 1.19)

8 9 0

Units

1.9 Rear view

Opon 1 Opon 2Opon 3

(see secon 1.10)

Signal

Detail of the plug-in screw terminals provided with the instrument. The instrument is provided with all terminals needed, both male and female.

Power

(see secon 1.7)

1.10 Signal connecons

12345

Reset

Fuse - To comply with security regulaon 61010-1, add to the power line a protecon fuse acng as disconnecon element, easily accessible to the operator and idened as a protecon device.

Power ‘H’ fuse 250 mA me lag

Power ‘L’ fuse 400 mA me lag

1.8 Sensor conguraon and connecons

Selecng one of the sensors listed at the ‘SnSr’ menu entry, will congure the sen- sor parameters to the values indicated in the table.

The table also indicates the typical connecons for each type of sensor. Parameters can be manually modied.

Connecons are indicated for a single sensor connected to the channel A. For two sensors (for inhibion control, quadrature signal, etc) apply the same connecon criteria also to channel B.

Note : indicated values are typical values. Check the correct specicaons with your sensor datasheet and adapt the required conguraon and connecons as needed.

Sensor Connecons Pulls Vexc. Anrrebound

Mechanical contact 0 V channel A pull-up no 100 mSec. 2,5 Vdc

Namur channel A Vexc pull-down 9 Vdc no 3,0 Vdc

NPN 2 wires 0 V channel A pull-up 18 Vdc no 2,5 Vdc

NPN 3 wires 0 V channel A Vexc pull-up 18 Vdc no 2,5 Vdc

PNP 2 wires 0 V channel A pull-down 18 Vdc no 2,5 Vdc

PNP 3 wires 0 V channel A Vexc pull-down 18 Vdc no 2,5 Vdc

Push-pull 0 V channel A Vexc no 18 Vdc no 2,5 Vdc

TTL CMOS Pick-up

AC<30 Vp Inducve

Canal B

Canal A

Vexc.

0 V

Trigger

lter

0 V channel A no 5 Vdc no 2,5 Vdc

0 V channel A no no no 0 Vdc

Table 2 - Conguraon and connecons for dierent types of sensors.

Page 7

DPF20

Frequency, rate, total or period counter

1.11 Technical specicaons

Digits

number of digits 6 led 7 segments led color red or green digit height 14 mm

Reading

maximum reading 999999 minimum reading -199999 decimal point congurable X.X.X.X.X.X.

overrange / underrange congurable to ash, reset or preset (see

secon 1.19.16)

display refresh 15 readings / second

memory retenon yes, retains reading value in case of pow-

er loss

Signals accepted NPN, PNP, Namur, pick-up, TTL, induc-

ve, mechanical, quadrature, ...

Max. Vdc at input ±30 Vdc Input impedance 2K4 with pull-up or pull-down resistor

470K without pull resistor

Accuracy of the quartz ±0.01 % Thermal dri 20 ppm / ºC

Instruction Manual

Counter Mode Frequency Secon

‘FAST’ mode acve max. 250 KHz 1.19.2

Counter

normal mode max. 9 KHz 1.19.2

Counter + inhibion max. 9 KHz 1.19.4

Counter + control A/S max. 9 KHz 1.19.5

Counter dierenal max. 9 KHz 1.19.6

mode x1 max. 17 KHz 1.19.3 Counter quadrature

mode x2 max. 16 KHz 1.19.3

mode x4 max. 11 KHz 1.19.3

Table 3 - Maximum input frequency for counter modes

Ratemeter Mode Frequency Secon

Ratemeter

normal mode

‘SLOW’ mode ac-

ve

max. 500 KHz

max. 200 Hz

min. 1 mHz

1.19.7

Excitaon voltage congurable output voltage +18 Vdc, +15 Vdc, +9 Vdc, +5 Vdc maximum current 70 mA protecon yes, current limited to 70 mA

Frequencies counter modes (see Table 3) ratemeter modes (see Table 4)

periodmeter modes (see Table 5)

Power

power ‘H’ 85 to 265 Vac/dc power ‘L’ 11 to 60 Vdc and 24/48 Vac isolaon* 2500 Ve with power ‘H’ 1500 Ve with power ‘L’ *tested for 60 sec. consumpon <1.5 W only meter <4.0 W meter with opons

Conguraon 3 buons front keypad

Front protecon IP65

Output and control opons relays, analog outputs, serial communi-

caons (see secon 2)

Mechanical

mounng panel connecons plug-in screw terminal housing material ABS, polycarbonate (V0) weight <150 grams front size 96 x 48 mm (1/8 DIN) panel cut-out 92 x 44 mm depth from panel 91 mm (including terminals)

Temperature

operaon from 0 to +50 ºC storage from -20 to +70 ºC warm-up me 15 minutes

mode x1 max. 17 KHz 1.19.8 Ratemeter quadrature

mode x2 max. 16 KHz 1.19.8

mode x4 max. 11 KHz 1.19.8

Table 4 - Maximum and minimum input frequency for ratemeter modes

Periodmeter Mode Frequency Secon

normal mode

Periodmeter

‘SLOW’ mode ac-

ve

Table 5 - Maximum and minimum input frequency for periodmeter modes

max. 500 KHz

max. 200 Hz

min. 1 mHz

(1000 sec.)

1.19.9

1.12 Mechanical dimensions (mm) (in)

(1.89)

(3.78)

(0.63)

(1.74)

Panel

cut-out

(3.63)

(0.31)(2.95)

Page 8

DPF20

Frequency, rate, total or period counter

1.13 Funcon ‘Trigger Sense’

The trigger level is automacally congured when selecng a sensor from the ‘Sensor / Conguraon’ (‘SnSr’ / ‘Auto’) menu list. The trigger level can be also manually modied from the ‘SnSr’ / ‘TrIG’ menu entry. The selected value applies to channels ‘A’ and ‘B’ (the reset has a xed trigger level at 2.5 Vdc).

At the ‘SnSr’ / ‘TrIG’ menu, the instrument shows the trigger level and two vercal leds to the le. These leds inform in real me about the status (‘0’ or ‘1’) of the input channels ‘A’ and ‘B’. When the led switches between up and down posion, it indicates that impulses are being detected at the input. If the instrument does not detect impulses, the led posions remain xed.

Increase the trigger level pressing key ‘UP’ (5) and decrease pressing key ‘LE’ (3).

channel ‘A’ channel ‘B’

Instruction Manual

Vdc

Trigger level

Time

‘1’

‘0’

Signal detected

Status ‘1’ Status ‘0’

Leds of the ‘Trigger Sense’ funcon

Trigger level

1.14 Funcon ‘cycle counter’ 1.15 ‘SLOW’ mode

The counter modes allow to acvate a reset funcon (to ‘0’ or to ‘preset’ value) when an alarm setpoint is reached. With this conguraon, the instrument counts in cycles, counng from the instrument preset value up to the alarm setpoint. Each cycle is counted and accumulated into an internal memory, accessible through the ‘fast access’ menu (key UP (5) (see secon 1.19.12)).

To reset the memory of cycles, visualize the value at the ‘uP’ menu, then press the (5) key and the ‘rSt’ message appears. Press (<) to reset.

Reading

Cycle counter

Impulse counter, with ‘reset to preset’ when setpoint 1 is reached

Setpoint 1

Preset

Time

Special working mode for applicaons with low frequency signals. Applies to ratemeter (‘rt.6’), ratemeter quadrature (‘rtq.7’) and periodmeter (‘Prd.8’). The ‘SLOW’ mode allows to measure slow frequencies down to 1 mHz (0,001 Hz) and is funconal up to 200 Hz.

The ‘SLOW’ mode provides the fastest response me possible for a given applicaon, calculang the frequency and the period based on the me between consecuve impulses.

The ‘SLOW’ mode needs to dene the parameter ‘maximum waing me’ to a value between 1 and 1000 seconds. If this me expires without a single impulse being received, the reading jumps to ‘0’ (both for ratemeter and periodmeter modes). The ‘GATE’ parameter is not used if ‘SLOW’ mode is acve.

In ‘ratemeter quadrature’ (‘rtq.7’) mode, the acvaon of the ‘SLOW’ mode calculates the frequency based on the me between consecuve impulses received on channel A, and calculates the sense of turn (clockwise or counter-clockwise) by comparing each impulse with the state of channel B. The ‘edge’ parameter is xed to a ‘1--1’. Typical applicaon for quadrature frequency measure with two inducve sensors at low frequency.

1.16 ‘FAST’ mode

Time

Special working mode for counter applicaons with high frequency signals, up to 250 KHz. Applies only to the counter mode (‘cn.1’).

The acvaon of the ‘FAST’ mode congures the signal detecon by rising edge. The rst edge detected, either rising or falling edge, aer the instrument restart (power-up, or conguraon change) is used for internal inializaon and will not be counted as impulse.

Page 9

DPF20

Frequency, rate, total or period counter

1.17 How to operate the menus

Instruction Manual

The instrument has two menus accessible to the user :

‘Conguraon menu’ (key SQ) (<)

‘Fast access’ menu (key UP) (5)

Conguraon menu

The ‘conguraon menu’ modies the conguraon parameters to adapt the instrument to the applicaon needs. To access the ‘conguraon menu’ press for 1 second the SQ (<) key. This access can be blocked by acvang the ‘Password’ (‘PASS’) funcon. While operang the ‘conguraon menu’, the alarm status is ‘hold’ to the status they had before accessing the menu, and the output and control modules remain in ‘error’ state. When leaving the ‘conguraon menu’, the instrument applies a system reset, followed by a brief disconnecon of the alarms and the output and control modules. Funconality is then recovered.

For a detailed explanaon on the ‘conguraon menu’ see secon

1.19, and for a full view of the ‘conguraon menu’ structure see secon 1.20.

‘Fast access’ menu

The ‘fast access’ menu is an operator congurable menu, providing fast and direct access to the most usual funcons of the instrument with a single key pad stroke. Press key UP (5) to access this menu.

See secon 1.19.12 for a list of funcons eligible for ‘fast access’ in this instrument. The ‘Password’ (‘PASS’) funcon does not block access to this menu. Accessing and modifying parameters in the ‘fast access’ menu does not interfere with the normal funconality of the instrument, and it does not generate any system reset when validating the changes.

Example of operaon inside the

‘conguraon menu’.

1. The SQ (<) key enters into the

(4)

‘conguraon menu’.

2. The SQ (<) key enters into the

(4)

‘Func’ opon menu.

3. The UP (5) key moves through

(4)

the menu opons.

(4)

4. The SQ (<) key selects the desired range and returns to the ‘Func’ menu.

5. The LE (3) key leaves the ac-

(6)

Funcon mode

(6)

(1)

(2)

(5)

(3)

(5)

(3)

tual menu level and moves to the previous menu level.

6. The LE (3) key leaves the ‘conguraon menu’. Changes are applied and saved at this moment.

1.18 Messages and errors

The error messages are shown on display in ash mode.

Messages and errors

‘Err.1’ incorrect password.

‘Err.2’ at ‘oPt.X’ menu entry. Installed module is not recognized.

Front key pad descripon

Key SQ (<) - press the SQ (<) key for 1 second to access the ‘con- guraon menu’. Inside the menu, the SQ (<) key funcons as a

‘ENTER’ key. It selects and accesses the menu opon currently displayed. At menus with numerical value entries, it validates the number displayed.

Key UP (5) - the UP (5) key gives access to the ‘fast access’ menu. Inside the menus, it moves vercally through the dierent menu opons. At menus with numerical value entries, it modies the digit selected by increasing its value to 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.

Key LE (3) - inside the menus, the LE (3) key funcons as the ‘ES- CAPE’ key. It leaves the selected menu, and eventually, will leave the

whole menu. When leaving the ‘conguraon menu’ with the LE (3) key, the changed parameters are acvated. At menus with numerical value entries, the LE (3) key allows to select the acve digit. To modify the value of the selected digit use the UP (5) key.

Menu ‘rollback’

Aer 30 seconds without interacon from the operator, the instrument will rollback and leave the ‘conguraon menu’ or the ‘fast ac- cess’ menu. All changes will be discarded.

‘Err.8’ excitaon voltage overload.

‘999999’ + ashing mode. Reading is in overrange.

‘-199999’ + ashing mode. Reading is in underrange.

Table 6 - Messages and error codes

Page 10

DPF20

Frequency, rate, total or period counter

1.19 Conguraon menu

Instruction Manual

Press ‘SQ’ (<) for 1 second to access the ‘conguraon menu’. For a descripon on how to operate inside the menus see secon

1.17. For a full vision of the ‘conguraon menu’ structure see

secon

1.20.

Counter

Funcon

mode

Counter quadrature

Counter + inhibion

Counter + control add / substract

Counter dierenal

Ratemeter

Ratemeter quadrature

Periodmeter

1.19.1 Inial set-up

To congure the inial set up of the instrument, select the funcon mode, the decimal point posion, scale the reading and congure the mode selected and the sensor.

Enter the ‘Funcon mode’ (‘Func’) menu and select the desired funcon, from the 5 counng modes, 2 ratemeter modes and the periodmeter mode available.

• ‘Counter’ (‘cn. 1’) - normal counter mode. Impulses input at chan- nel A. Channel B disabled.

• ‘Counter quadrature’ (‘cnq.2’) - counter mode for quadrature sig- nals. Impulses input at channel A and B, in quadrature.

• ‘Counter + inhibion’ (‘cnI.3’) - counter mode with inhibion con- trol. Impulses input at channel A. Inhibion control on channel B.

• ‘Counter + control add / substract’ (‘cnc.4’) - counter mode with control for add / substract. Impulses input at channel A. Control for the add or substract funcon on channel B.

• ‘Counter dierenal’ (‘cnd.5’) - counter mode with dierenal funcon. Impulses received at channel A add. Impulses received at channel B substract.

• ‘Ratemeter’ (‘rt.6’) - ratemeter mode. Impulses input at channel A. Channel B disabled.

Decimal point

The next menu accesses the conguraon parameters for the ‘funcon mode’ (‘Func’) selected. Conguraon parameters are slightly dierent for each ‘funcon mode’. In the next entries, all 7 possible conguraon menus are explained, ‘cnF.1’ to ‘cnF.7’, one for each ‘funcon mode’.

Mulplier

Conguraon

counter

Mulplier

Divider

Preset

Mode

‘FAST’ mode

1 to 999999

Divider 1 to 999999

Preset value

-199999 to 999999

Down

• ‘Ratemeter quadrature’ (‘rtq.7’) - ratemeter mode for quadrature signals. Impulses input at channel A and B, in quadrature.

• ‘Periodmeter’ (‘Prd.8’) - periodmeter mode. Impulses input at channel A. Channel B disabled.

Access the ‘Decimal point’ (‘dP’) menu to select the decimal point posion. Move the decimal point by pressing the ‘LE’ (3) key.

Congure the funcon mode selected (‘cnF.2’ to ‘cnF.8’). See sec- ons 1.19.2 to 1.19.9.

Congure the sensor at the ‘SnSr’ menu. See secon 1.19.10.

1.19.2 Conguraon for ‘cn.1’

Conguraon menu for mode ‘counter’ (‘cn.1’). Total impulses re- ceived are mulplied by the value of the ‘mulplier’ (‘MuLt’) register and divided by the ‘divider’ (‘dIV’) register. Result is refreshed on the display.

• assign the value for parameter ‘Mulplier’ (‘MuLt’) from 1 to

999999.

• assign the value for parameter ‘Divider’ (‘dIV’) from 1 to 999999.

• assign the value for ‘Preset’ (‘PrSt’) from -199999 to 999999. Reset acvaon loads on display the preset value.

• select the counng mode (‘ModE’) to ‘uP’ for upwards counng (impulses received add) or ‘doWn’ for downwards counng (impulses received substract).

• to acvate the ‘FAST’ mode (‘FASt’) select ‘on’. See secon 1.16 for more informaon on the ‘FAST ’ mode.

Page 11

DPF20

Frequency, rate, total or period counter

1.19 Conguraon menu (cont.)

Conf. counter

quadrature

Mulplier

Divider

Preset

Mulplier 1 to 999999

Divider 1 to 999999

Valor del preset

-199999 to 999999

Instruction Manual

1.19.3 Conguraon for ‘cnq.2’

Conguraon menu for mode ‘counter quadrature’ (‘cnq.2’). Total impulses received are mulplied by the value of the ‘mulplier’ (‘MuLt’) register and divided by the ‘divider’ (‘dIV’) register. Result is refreshed on the display.

• assign the value for parameter ‘Mulplier’ (‘MuLt’) from 1 to

999999.

• assign the value for parameter ‘Divider’ (‘dIV’) from 1 to 999999.

Conf. counter

+ inhibion

Edges

Mulplier

Divider

Preset

Mode

Inhibion

1 imp. per cycle

2 imp. per cycle

4 imp. per cycle

Mulplier 1 to 999999

Divider 1 to 999999

Valor del preset

-199999 to 999999

Down

Inhibits if channel B is high

Inhibits if channel B is 0 Vdc

• assign the value for ‘Preset’ (‘PrSt’) from -199999 to 999999. Reset acvaon loads on display the preset value.

• select the ‘edges’ to count for each quadrature cycle (‘q.124’). Select ‘1--1’ for 1 impulse per quadrature cycle. Select ‘1--2’ for 2 im- pulses per quadrature cycle. Select ‘1--4’ for 4 impulses per quadrature cycle.

1.19.4 Conguraon for ‘cnI.3’

Conguraon menu for mode ‘counter + inhibion control’ (‘cnI.3’). Total impulses received are mulplied by the value of the ‘mulplier’ (‘MuLt’) register and divided by the ‘divider’ (‘dIV’) register. Result is refreshed on the display.

• assign the value for parameter ‘Mulplier’ (‘MuLt’) from 1 to

999999.

• assign the value for parameter ‘Divider’ (‘dIV’) from 1 to 999999.

• assign the value for ‘Preset’ (‘PrSt’) from -199999 to 999999. Reset acvaon loads on display the preset value.

• select the counng mode (‘ModE’) to ‘uP’ for upwards counng (impulses received add) or ‘doWn’ for downwards counng (impulses received substract).

• select the acvaon mode for the ‘inhibion’ (‘Inh’) control. Select ‘on_h’ to inhibit the counng when channel B is at logical state ‘1’. Select ‘on_0’ to inhibit the counng when channel B is at logical state ‘0’.

Conguraon

counter +

control

add / substract

Mulplier

Divider

Preset

Control A/S

Mulplier 1 to 999999

Divider 1 to 999999

Valor del preset

-199999 to 999999

Adds if channel B is high

Adds if channel B is 0 Vdc

1.19.5 Conguraon for ‘cnc.4’

Conguraon menu for mode ‘counter + control add / substract’ (‘cnc.4’). Total impulses received are mulplied by the value of the ‘mulplier’ (‘MuLt’) register and divided by the ‘divider’ (‘dIV’) register. Result is refreshed on the display.

• assign the value for parameter ‘Mulplier’ (‘MuLt’) from 1 to

999999.

• assign the value for parameter ‘Divider’ (‘dIV’) from 1 to 999999.

• assign the value for ‘Preset’ (‘PrSt’) from -199999 to 999999. Reset acvaon loads on display the preset value.

• select the acvaon mode for the ‘control add / substract’ (‘Add’). Select ‘on_h’ acvates the addion of impulses received on channel A when channel B is at logical state ‘1’ (impulses on channel A substract if channel B is at logical state ‘0’). Select ‘on_0’ acvates the addion of impulses received on channel A when channel B is at logical state ‘0’ (impulses on channel A substract if channel B is at logical state ‘1’).

Page 12

DPF20

Frequency, rate, total or period counter

1.19 Conguraon menu (cont.)

Conguraon

counter

dierenal

Conf. ratemeter

Mulplier

Divider

Preset

Mulplier

Divider

Time window

Mulplier 1 to 999999

Divider 1 to 999999

Preset value

-199999 to 999999

Mulplier 1 to 999999

Divider 1 to 999999

Seconds

Instruction Manual

1.19.6 Conguraon for ‘cnd.5’

Conguraon menu for mode ‘counter dierenal’ (‘cnd.5’). To- tal impulses received are mulplied by the value of the ‘mulplier’ (‘MuLt’) register and divided by the ‘divider’ (‘dIV’) register. Result is refreshed on the display.

• assign the value for parameter ‘Mulplier’ (‘MuLt’) from 1 to

999999.

• assign the value for parameter ‘Divider’ (‘dIV’) from 1 to 999999.

• assign the value for ‘Preset’ (‘PrSt’) from -199999 to 999999. Reset acvaon loads on display the preset value.

Impulses received on channel A add. Impulses received on channel B substract.

1.19.7 Conguraon for ‘rt.6’

Conguraon menu for mode ‘ratemeter’ (‘rt.6’). Frequency mea- sured is mulplied by the value of the ‘mulplier’ (‘MuLt’) register and divided by the ‘divider’ (‘dIV’) register. Result is refreshed on the display. Measure is updated at the rate dened on the ‘GATE’ regis-

t e r.

Conf. ratemeter

quadrature

‘SLOW’ mode

Average lter

Mulplier

Divider

Time window

Filter strength (0 = disabled)

Max. waing me

Number of pulses

Mulplier 1 to 999999

Divider 1 to 999999

Seconds

• assign the value for parameter ‘Mulplier’ (‘MuLt’) from 1 to

999999.

• assign the value for parameter ‘Divider’ (‘dIV’) from 1 to 999999.

• select the value for the ‘Time window’ (‘GAtE’). Available values are : 0.5, 1.0, 2.0, 4.0, 8.0 or 16.0 seconds. The me window denes the display refresh me. This parameter has no eect if the ‘SLOW’ mode is acve.

• for slow frequencies acvate the ‘SLoW’ parameter conguring the ‘tIME’ parameter between 1 and 1000 seconds. Congure the ‘nuMb’ parameter between 1 and 32 impulses. See secon 1.15 for more in- formaon on the ‘SLoW’ mode.

• in case of unstable signals, acvate the ‘average lter’ (‘AVr’) func- on. It acvates a recursive lter on the reading. the lter is stronger for higher values, from 0.0 to 99.9.

1.19.8 Conguraon for ‘rtq.7’

Conguraon menu for mode ‘ratemeter quadrature’ (‘rtq.7’). Frequency measured is mulplied by the value of the ‘mulplier’ (‘MuLt’) register and divided by the ‘divider’ (‘dIV’) register. Result is refreshed on the display. Measure is updated at the rate dened on the ‘GATE’ register.

• assign the value for parameter ‘Mulplier’ (‘MuLt’) from 1 to

999999.

Edges

1 imp. per cycle

2 imp. per cycle

4 imp. per cycle

• assign the value for parameter ‘Divider’ (‘dIV’) from 1 to 999999.

Page 13

DPF20

Frequency, rate, total or period counter

1.19 Conguraon menu (cont.)

‘SLOW’ mode

Average lter

Filter strength (0 = disabled)

Max. waing me

Number of pulses

Instruction Manual

Conf.

Periodmeter

Mulplier

Divider

Time window

‘SLOW’ mode

Average lter

Filter strength (0 = disabled)

Mulplier 1 to 999999

Divider 1 to 999999

Seconds

Max. waing me

Number of pulses

1.19.9 Conguraon for ‘Prd.8’

Conguraon menu for mode ‘periodmeter’ (‘Prd.8’). Period measured is mulplied by the value of the ‘mulplier’ (‘MuLt’) register and divided by the ‘divider’ (‘dIV’) register. Result is refreshed on the display. Measure is updated at the rate dened on the ‘GATE’ regis-

t e r.

• assign the value for parameter ‘Mulplier’ (‘MuLt’) from 1 to

999999.

• assign the value for parameter ‘Divider’ (‘dIV’) from 1 to 999999.

• for long periods acvate the ‘SLoW’ parameter conguring the ‘tIME’ parameter between 1 and 1000 seconds. Congure the ‘nuMb’ parameter between 1 and 32 impulses. See secon 1.15 for more in- formaon on the ‘SLoW’ mode.

Sensor

Automac conf.

Mechanical contact

Namur

NPN 2 wire

NPN 3 wire

PNP 2 wire

PNP 3 wire

Push pull

TTL

CMOS

Pick-up

Inducve

Vac <30 V

1.19.10 Sensor conguraon

The sensor conguraon menu (‘SnSr’) provides conguraon for the input secon of the instrument, the excitaon voltage and the trigger level, for accurate detecon of the impulses.

• ‘Automac conguraon’ (‘Auto’) - if a standard sensor is used, select one of the sensors provided at the ‘Auto’ menu list. The instrument will automacally congure the parameters according to Table 2 (see secon 1.8). If this conguraon does not detect impulses, manually modify the values for the parameters indicated below.

Page 14

DPF20

Frequency, rate, total or period counter

1.19 Conguraon menu (cont.)

Instruction Manual

Pulls on channel A

Pulls on channel B

Pulls on reset

Trigger level

No pull resistor

Pull-up

Pull-down

No pull resistor

Pull-up

Pull-down

No pull resistor

Pull-up

Pull-down

Trigger level (from

0.0 Vdc a 3.9 Vdc). See secon 1.15 for ‘Trigger Sense’ ulity

• ‘Pulls on channel A’ (‘PuL.A’) - acvates pull resistors at chan- nel A. Select ‘P.uP’ to acvate pull-up resistors (needed for NPN sensors). Select ‘P.dn’ to acvate pull-down resistors (needed PNP sensors). Pull-up and pull-down selecon congure the trigger level to 2,5 Vdc.

• ‘Pulls on channel B’ (‘PuL.b’) - see previous menu entry ‘Pulls on channel A’.

• ‘Pulls on reset’ (‘PuL.r’) - see previous menu entry ‘Pulls on channel A’. Trigger level for reset channel is xed to 2,5 Vdc.

• ‘trigger level’ (‘trIG’) - input signal value in Vdc at which the in- strument detects impulse. Selectable between 0,0 and 3,9 Vdc. Trigger level is the same for channels A and B. Trigger level for reset channel is xed at 2,5 Vdc. The two leds at the le of the trigger level are part of the ‘Trigger Sense’ ulity for easy locaon of the proper trigger level (see secon 1.13).

• ‘Acvaon for channel A’ (‘Act.A’) - congures the acvaon of channel A by rising edge (‘on_h’) or by falling edge (‘on_0’)

• ‘Acvaon for reset channel’ (‘Act.r’) - congures the acva- on of the reset channel by rising edge (‘on_h’) or by falling edge (‘on_0’)

• ‘Excitaon voltage’ (‘V.EXc’) - congures the value of the excita- on voltage at 5 Vdc, 9 Vdc, 15 Vdc and 18 Vdc. Select ‘no’ to disable the excitaon voltage.

Acvaon for

channel A

Acvaon for

reset

Excitaon voltage

Anrrebound

by rising edge

by falling edge

by rising edge

by falling edge

Anrrebound lter (0 to 1000 mSec.)

• ‘Anrrebound lter’ (‘rbnd’) - the anrrebound lter blocks ad- dional rebounds (typically from a mechanical contact sensor) from the same single impulse, prevenng that a single impulse counts for more than 1. Value between 0 mSeconds and 1000 mSeconds. When an impulse is received, impulse detecon is disabled for the duraon of the me congured in this parameter. Aer me has passed, impulse detecon is enabled again. Recommended value for a mechanical contact : 100 mSeconds.

Page 15

DPF20

Frequency, rate, total or period counter

1.19 Conguraon menu (cont.)

Alarms

Alarm 1

Reading

o

acvaon delay

o

Acve

Alarm type

Setpoint

Hysteresis

Acvaon delay

Deacvaon delay

Setpoint 2

Relay inverted

Locked alarm

On alarm

setpoint

hysteresis

Alarm as maximum, no hysteresis, no delays

Alarm as maximum, with hysteresis and delays

deacvaon delay

Alarm as minimum, no hysteresis, no delays

Connue

To zero

To preset

Time

Instruction Manual

1.19.11 Alarms

The ‘Alarms’ (‘ALr’) menu congures the independent acvaon of up to 3 relay outputs (or transistor or SSR drive control), installed with the R1 oponal modules (or T1 or SSR) (see secon 2.1). For outputs up to 4 and 6 relays, see special modules R2, R4 and R6 at secon 2.6. The alarm states are indicated in the front display with leds marked as ‘1’, ‘2’ and ‘3’.

To congure an alarm, enter into the alarm menu (‘ALr1’, ‘ALr2’ or ‘ALr3’) and congure the following parameters :

• select ‘Acve’ (‘Act’) to ‘on’

• at ‘Alarm type’ (‘TypE’) select the alarm to act as a maximum type alarm (‘MAX’) or a minimum type alarm (‘MIn’). The maximum type alarm (or minimum type alarm) acvates when the display value is higher (or lower) than the setpoint value.

• at ‘Setpoint’ (‘SEt’) enter the value for the alarm acvaon point. This parameter is eligible for conguraon through the ‘Fast access’ menu (see secon 1.19.12).

• congure the hysteresis value at ‘Hysteresis’ (‘hySt’). The hysteresis applies to the deacvaon process of the alarm. The alarm deacvates when the reading has passed the setpoint value plus the hysteresis value. Hysteresis helps to avoid repeve switching of the alarm relays, due to uctuang input signals around the setpoint.

• at ‘Acvaon delay’ (‘dEL.0’) congure the delay to apply before alarm acvaon. The acvaon delay starts counng when the setpoint value is passed. Value from 0.0 to 99.9 seconds.

• at ‘Deacvaon delay’ (‘dEL.1’) congure the delay to apply before alarm deacvaon. The deacvaon delay starts counng when the setpoint value plus the hysteresis value, is passed. Value from 0.0 to 99.9 seconds.

• to work with ‘windowed alarms’ (see graphical example below) acvate ‘Setpoint 2’ (‘SEt2’) to ‘on’ and then congure the desired second setpoint value. Second setpoint must always be higher in value than the rst setpoint.

• the ‘Relay inverted’ (‘r.Inv’) parameter inverts the normal relay connecons. When set to ‘on’ the relay will be acve when alarm is inacve. For security applicaons where an inacve relay controls the shutdown of the system.

• the ‘Locked alarm’ (‘A.Lck’) parameter disables the automac deacvaon of the alarm. Alarm deacvaon must be performed manually, by pressing the ‘LE’ front buon (see secon 1.19.14)

• the ‘On alarm’ (‘on.AL’) parameter assigns a predened behaviour when alarm is acvated. Select ‘cont’ to connue counng. Select ‘to_0’ to load ‘0’ on displays. Select ‘to_p’ to load preset value on display. Parameter ‘dEL.1’ is set to 1 second when ‘to_0’ or ‘to_p’ are selected.

Reading

Setpoint 2

Setpoint 1

Time

o

Alarm as minimum, with double setpoint, no hysteresis, no delays

Time

Page 16

DPF20

Frequency, rate, total or period counter

1.19 Conguraon menu (cont.)

Instruction Manual

1.19.12 Fast access

Tools

Key UP

(‘fast access’)

Setpoint 1

Setpoint 2

Setpoint 3

Memory of

maximum

Memory of

minimum

Memory of

cycles

Preset value

The ‘UP’ (5) key at the front of the instrument gives access to a list of funcons congurable by the operator. See secon 1.17 for an explanaon on how to operate the ‘fast access’ menu.

The ‘Key UP (Fast access)’ (‘K.uP’) menu allows to select which funcons will be accessible through the ‘fast access’ menu. Select ‘on’ to acvate each funcon.

• the ‘Setpoint

1’ (‘ALr1’) funcon allows to visualize and modify the alarm 1

setpoint through the ‘fast access’ menu.

• the ‘Setpoint

2’ (‘ALr2’) funcon allows to visualize and modify the alarm 2

setpoint through the ‘fast access’ menu.

• the ‘Setpoint

3’ (‘ALr3’) funcon allows to visualize and modify the alarm 3

setpoint through the ‘fast access’ menu.

• the ‘Memory of maximum’ (‘MAX’) or ‘Memory of minimum’ (‘MIn’) func- ons allow to visualize the maximum or minimum reading value stored in memory. To reset this value, visualize the memory value at the ‘fast access’ menu with key UP (5) and when message ‘rSt’ is displayed, press (<) to re- set.

• the ‘Memory of cycles’ (‘cYcL’) funcon allow to visualize and reset the memory of cycles. To reset this value, visualize the memory value at the ‘fast access’ menu with key UP (5) and when message ‘rSt’ is displayed, press (<) to reset. The memory of cycles countes ‘+1’ each me a reset alarm occurs (‘on_AL’ / ‘to_0’ or ‘to_P’) or a reset by ‘overrange’ / ‘underrange’ occurs.

• the ‘Preset value’ (‘PrSt’) funcon allows to visualize and modify the preset value congured.

On power-up

Key LE

Delay Seconds

Reset

No funcon

Front reset

Alarm unlock

Reset and alarm unlock

1.19.13 Super fast access

If only a single funcon is selected for the ‘fast access’ menu, pressing the the ‘UP’ (5) key will shortly display the funcon name and then automacally jump to the funcon value.

1.19.15 Menu ‘On Power Up’

The ‘On Power Up’ (‘on.Pu’) menu congures funcons to apply at start-up. It applies only to instrument restart aer power loss. It does not apply to instrument restart due to change in conguraon.

• parameter ‘Delay’ (‘dLAy’) assigns a waing me in seconds. The instrument waits the congured me before starng normal funcon. During this waing me, the display shows all decimal points on in ash mode, all alarms are in ‘oFF’ state, there is no signal acquision and there is no communicaons or control being performed. Aer the congured me is over, the instrument starts in normal funcon. Delay value between 0 and 200 seconds.

• the ‘Reset’ (‘rSt’) parameter will execute a reset of the counter each me the instrument is restarted.

1.19.14 Menu ‘Key LE’

The ‘LE’ (3) key at the front of the instrument can be congured to acvate a funcon.

• the ‘No funcon’ (‘nonE’) value assigns no funcon.

• the ‘Front reset’ (‘F.rSt’) value asigns the reset funon.

• the ‘Alarm unlock’ (‘A.Lck’) value assigns the manual unlock of the alarms funcon, for instruments with the ‘Locked alarms’ (‘A.Lck’) funcon acvated (see secon 1.19.11)

• the ‘Reset and alarm unlock’ (‘Fr.AL’) assigns the two previous funcons to the same buon.

Page 17

DPF20

Frequency, rate, total or period counter

1.19 Conguraon menu (cont.)

Instruction Manual

Counter

overrange

Counter

underrange

Le zeros

Vexc. control

Password

Factory reset

Flash

To zero

To preset

Flash

To zero

To preset

With le zeros

Without le zeros

with Vexc. error control

without Vexc. error control

1.19.16 Menus ‘Overrange / underrange’

The ‘Counter overrange’ (‘c.orG’) and ‘Counter underrange’ (‘c.urG’) parameters congure the behavior of the instrument when reading is higher than ‘9999’ (overrange) or lower than ‘-1999’ (underrange). Select ‘FLSH’ to enter reading into ash mode. Select ‘to_0’ to apply a reset to ‘0’. Select ‘to_P’ to apply a reset to preset value.

1.19.17 Le zeros

The ‘Le zeros’ (‘L.ZEr’) parameter controls the le zeros on or o.

1.19.18 Vexc. control

The ‘Vexc control’ (‘V.ctr’) parameters enables the ‘Err.8’ message, when consumpon requested to the excitaon voltage is higher than the current the instrument can provide.

1.19.19 Funcon ‘Password’

At the ‘Password’ (‘PASS’) menu select a 6 digit code to block access to the ‘conguraon menu’. Instrument conguraon will not be accessible to non authorized personnel. To acvate the ‘Password’ select ‘on’ and introduce the code.

The code will be requested when trying to access the ‘conguraon menu’ (key ‘SQ’ (<)). The ‘fast access’ menu is not password protected.

Opon

Version

Brightness

Minimum

Standard

Maximum

Conguraon menu for the module installed at Opt.1

Conguraon menu for the module installed at Opt.2

1.19.20 Factory reset

At the ‘Factory reset’ (‘FAct’) menu, select ‘yes’ to load the default factory conguraon for the instrument (see secon 1.21).

1.19.21 Firmware version

The ‘Version’ (‘VEr’) menu informs of the current rmware version installed in the module.

1.19.22 Brightness

At the ‘Brightness’ (‘LIGh’) menu select the light intensity for the front leds. With this funcon it is possible to adapt the instrument to the environment light intensity.

1.19.23 Access to oponal modules

Menus ‘OPt.1’, ‘ OPt.2’ and ‘OPt.3’ give access to the ‘conguraon menus’ of the output and control modules installed at slots Opt.1, Opt.2 and Opt.3.

See secon 2 for a list of output and control modules available for each slot. The ‘conguraon menu’ of each module is described at the User’s Manual of each module.

Opon 3

Conguraon menu for the module installed at Opt.3

Page 18

DPF20

Frequency, rate, total or period counter

1.20 Full conguraon menu

Press ‘SQ’ (<) for 1 second to access the ‘Conguraon menu’. See secon

1.19 for a descripon of each menu entry.

Counter

Funcon

mode

Counter quadrature

Counter + inhibion

Conf. counter

+ inhibion

Mulplier

Divider

Instruction Manual

Mulplier 1 to 999999

Divider 1 to 999999

Decimal point

Conguraon

counter

Mulplier

Divider

Preset

Mode

‘FAST’ mode

Counter + control add / substract

Counter dierenal

Ratemeter

Ratemeter quadrature

Periodmeter

Select with key LE

Mulplier 1 to 999999

Divider 1 to 999999

Preset value

-199999 to 999999

Down

Conguraon

counter +

control

add / substract

Conguraon

counter

dierenal

Preset

Mode

Inhibion

Mulplier

Divider

Preset

Control A/S

Mulplier

Divider

Preset value

-199999 to 999999

Down

Inhibits if channel B is high

Inhibits if channel B is 0 Vdc

Mulplier 1 to 999999

Divider 1 to 999999

Preset value

-199999 to 999999

Adds if channel B is high

Adds if channel B is 0 Vdc

Mulplier 1 to 999999

Divider 1 to 999999

Conf. counter

quadrature

Mulplier

Divider

Preset

Edges

Mulplier 1 to 999999

Divider 1 to 999999

Preset value

-199999 to 999999

1 imp. per cycle

2 imp. per cycle

4 imp. per cycle

Conf. ratemeter

Preset

Mulplier

Divider

Time window

Preset value

-1999 to 999999

Mulplier 1 to 999999

Divider 1 to 999999

Seconds

Page 19

DPF20

Frequency, rate, total or period counter

1.20 Full conguraon menu (cont.)

Instruction Manual

Conf. ratemeter

quadrature

‘SLOW’ mode

Average lter

Mulplier

Divider

Time window

Filter strength (0 = disabled)

Max. waing me

Number of pulses

Mulplier 1 to 999999

Divider 1 to 999999

Seconds

Sensor

‘SLOW’ mode

Average lter

Automac conf.

Max. waing me

Number of pulses

Filter strength (0 = disabled)

Mechanical contact

Namur

NPN 2 wire

NPN 3 wire

PNP 2 wire

PNP 3 wire

Push pull

TTL

CMOS

Conf. ratemeter

Edges

‘SLOW’ mode

Average lter

Mulplier

Divider

Time window

Filter strength (0 = disabled)

1 imp. per cycle

2 imp. per cycle

4 imp. per cycle

Max. waing me

Number of pulses

Mulplier 1 to 999999

Divider 1 to 999999

Seconds

Pulls on channel A

Pulls on channel B

Pulls on reset

Pick-up

Inducve

Vac <30 V

No pull resistor

Pull-up

Pull-down

No pull resistor

Pull-up

Pull-down

No pull resistor

Pull-up

Pull-down

Trigger level

Trigger level (from

0.0 Vdc a 3.9 Vdc). See secon 1.15 for ‘Trigger Sense’ ulity

Page 20

DPF20

Frequency, rate, total or period counter

1.20 Full conguraon menu (cont.)

rising edge

Instruction Manual

Alarms

Alarm 1

Channel A ac-

vaon

Acvaon for

reset

Excitaon voltage

Anrrebound

Acve

falling edge

by rising edge

by falling edge

Anrrebound lter (0 to 1000 mSec.)

Tools

Key UP

(‘fast access’)

Setpoint 1

Setpoint 2

Setpoint 3

Memory of

maximum

Memory of

minimum

Memory of

cycles

Preset value

Alarm type

Setpoint

Hysteresis

Acvaon delay

Deacvaon delay

Setpoint 2

Relay inverted

Locked alarm

On alarm

Connue

To zero

To preset

On power-up

Key LE

Counter

overrange

Counter

underrange

Delay Seconds

Reset

No funcon

Front reset

Alarm unlock

Reset and alarm unlock

Flash

To zero

To preset

Flash

To zero

To preset

Page 21

DPF20

Frequency, rate, total or period counter

1.20 Full conguraon menu (cont.) 1.21 Factory conguraon

Instruction Manual

Le zeros

Control Vexc.

Password

Factory reset

Brightness

Opon

Opon 3

With le zeros

Without le zeros

with Vexc. error control

without Vexc. error control

Version

Minimum

Standard

Maximum

Conguraon menu for the module installed at Opt.1

Conguraon menu for the module installed at Opt.2

Conguraon menu for the module installed at Opt.3

Funcon counter (‘cn.1’) Decimal point no Counter conguraon Mulplier x1 Divider /1 Preset 0 Mode up ‘FAST’ o Sensor Pulls on channel A no pull resistor Pulls on channel B no pull resistor Pulls on reset pull-up Trigger 2,5 Vdc Acvaon for channel A on rising edge (‘on_h’) Excitaon voltage 5 Vdc Anrrebound lter 0 mSeconds Tools Fast access (Key UP) o ‘On Power Up’ Delay 0 seconds Key ‘LE’ reset funcon Memory of maximum -199999 Memory of minimum 999999 Memory of cycles 0 Counter overrange ash Counter underrange ash Le zeros o Vexc. control o Password o Brightness 3 Alarms 1,2 and 3 Acve o (disabled) Type maximum Setpoint 1000 Hysteresis 0 counts Acvaon delay 0.0 seconds Deacvaon delay 0.0 seconds Setpoint 2 o On Alarm connue Inverted relay o Locked alarms o

Factory conguraon for Ratemeter (‘cnF.6) and periodmeter (‘cnF.8) modes.

Mulplier x1

Divider /1 Time windows 0.5 ‘SLOW’ mode tIME 0 (o) nuMb 1 Recursive lter 0 (o)

Factory conguraon for output and control modules, see secon 2.

Page 22

DPF20

Frequency, rate, total or period counter

1.22 To access the instrument

Instruction Manual

To open the housing, use a at screwdriver to free the xaon clips, if possible, in the following order : D, C, B and A. Remove the front cover. Let the inside of the instrument slide out of the housing.

To reinsert the instrument make sure that all modules are correctly connected to the pins on the display module. Place all the set into the housing, assuring that the modules correctly t into the internal guiding slides of the housing. Once introduced, place again the front cover in front of the housing, placing rst corner ‘X’ and then inserting clips ‘A’, ‘B’, ‘C’ and ‘D’ in this order.

See secon 3 for a detailed descripon on how to open and close the housing.

Risk of electric shock. Removing the front cover will grant access to the internal circuits. Disconnect the input signal to prevent electric shock to the operator. Operaon must be performed by qualied personnel only.

Observe precauons for handling ESD (electrostac discharge) sensive devices

1.23 Modular system

DPF20 panel meters are designed to create a modular system. This modular system allows for addion, replacement or substuon of any of the internal modules conforming the instrument. Below is a graphic explanaon for the posion of each module.

Front Filter Display Module Oponal Control Modules

Opt.2

Opt.1

Opt.3

Power Supply Module

Input Signal Module

Housing

Page 23

DPF20

Frequency, rate, total or period counter

Instruction Manual

1.24 Precauons on installaon

Risk of electrical shock. Instrument terminals can be connected to dangerous voltage.

Instrument protected with double isolaon. No earth connecon required.

Instrument conforms to CE rules and regulaons.

This instrument has been designed and veried conforming to the 61010-1 CE Security Regulaon, for industrial applicaons.

Installaon of this instrument must be performed by qualied personnel only. This manual contains the appropriate informaon for the installaon. Using the instrument in ways not specied by the manufacturer may lead to a reducon of the specied protecon level. Disconnect the instrument from power before starng any maintenance and / or installaon acon.

The instrument does not have a general switch and will start operaon as soon as power is connected. The instrument does not have protecon fuse, the fuse must be added during installaon.

The instrument is designed to be panel mounted. An appropriate venlaon of the instrument must be assured. Do not expose the instrument to excess of humidity. Maintain clean by using a humid rag and do NOT use abrasive products such as alcohols, solvents, etc.

General recommendaons for electrical installaons apply, and for proper funconality we recommend : if possible, install the instrument far from electrical noise or magnec eld generators such as power relays, electrical motors, speed variators, ... If possible, do not install along the same conduits power cables (power, motor controllers, electrovalves, ...) together with signal and/or control cables.

Before proceeding to the power connecon, verify that the voltage level available matches the power levels indicated in the label on the instrument.

In case of re, disconnect the instrument from the power line, re alarm according to local rules, disconnect the air condioning, aack re with carbonic snow, never with water.

1.25 CE declaraon of conformity

Products DPF20

The manufacturer declares that the instruments indicated comply with the direcves and rules indicated below.

Electromagnec compability direcve 2014/30/EU Low voltage direcve 2014/35/EU Direcve ROHS 2011/65/EU

Security rules EN-61010-1

Instrument Fixed Permanently connected Polluon degree 1 and 2 (without condensaon) Isolaon Double

Electromagnec compability rules EN-61326-1

EM environment

Immunity levels

EN-61000-4-2 By contact ±4 KV Criteria B By air ±8 KV Criteria B

EN-61000-4-3 Criteria A

EN-61000-4-4 On AC power lines : ±2 KV Criteria B On DC power lines : ±2 KV Criteria B On signal lines : ±1 KV Criteria B

EN-61000-4-5 Between AC power lines ±1 KV Criteria B Between AC power lines and earth ±2 KV Criteria B Between DC power lines ±1 KV Criteria B Between DC power lines and earth ±2 KV Criteria B Between signal lines and earth ±1 KV Criteria B

EN-61000-4-6 Criteria A

EN-61000-4-8 30 A/m at 50/60 Hz Criteria A

EN-61000-4-11 0 % 1 cycle Criteria A 40 % 10 cycles Criteria A 70 % 25 cycles Criteria B 0 % 250 cycles Criteria B

Emission levels

CISPR 11 Instrument Class A, Group 1 Criteria A

Industrial

According to direcve 2012/19/EU, electronic equipment must be recycled in a selecve and controlled way at the end of its useful life.

Page 24

DPF20

Frequency, rate, total or period counter

Instruction Manual

2. Output and control modules

2.1 Módules R1, T1 and SSR

The R1, T1 and SSR modules provides 1 relay output, 1 transistor output or 1 SSR drive output, to install in DPF20 digital panel meters, up to a maximum of 3 modules in a single meter.

Note : for more than three relays per instrument or larger relay density per module, see special modules R2, R4 and R6.

Conguraon is performed from the frontal keypad of the meter, by seng the parameters at the alarms conguraon menu (‘ALr.1’, ‘ALr.2’ or ‘ALr.3’ depending on the posion the module is installed).

Opon R1

Output type relay

Relay type

Maximum current 8 A (resisve load)

Maximum voltage 250 Vac connuous

Isolaon 3500 Ve

Type of terminal plug-in screw terminal pitch 5.08 mm

Installaon allowed at ‘Opt.1’, ‘Opt.2’, ‘ Opt.3’

Opon T1

Output type transistor

Maximum voltage 35 Vdc

Maximum current 50 mA

Isolaon 3500 Ve

Type of terminal plug-in screw terminal pitch 5.08 mm

Installaon allowed at ‘Opt.1’, ‘Opt.2’, ‘ Opt.3’

Opon SSR

Output type to control a SSR relay

Output voltage +15 Vdc

Maximum current 45 mA

Isolaon 1000 Vdc

Type of terminal plug-in screw terminal pitch 5.08 mm

Installaon allowed at ‘Opt.1’, ‘Opt.2’, ‘ Opt.3’

3 contact relay (NC, NO, common)

Module R1 - Relay output

Module T1 - Transistor output

Module SSR - SSR drive out

Table 7 - Connecons

The menu allows to congure the setpoint, hysteresis, independent acvaon and deacvaon delays, and a second setpoint to create alarm windows.

Modules R1, T1 and SSR are isolated against all other instrument circuits, and isolated between them.

Modules R1, T1 and SSR can be ordered pre-installed into a DPF20 digital panel meter, or standalone for delayed installaon, as they do not require soldering or special conguraon.

Module Output schemacs and connecons

‘com’ (‘A’)

‘NC’ (‘C’)

‘NO’ (‘B’)

Schemac for R1 output

‘B’

‘A’

Schemac for T1 output

+15 Vdc ‘C’

put

Schemac for SSR drive output

‘B’

‘A’

SSR relay

Opt.3

A B C

Opt.1

A B C

Signal

Rear view DPF20

Opt.2

A B C

Power

Page 25

DPF20

Frequency, rate, total or period counter

2.2 Module AO

Instruction Manual

Module AO provides 1 analog output congurable as 4/20 mA or 0/10 Vdc, to install in DPF20 digital panel meters.

Conguraon is performed from the frontal keypad of the meter, by seng the parameters at the opons conguraon menu (‘Opt.1’, ‘Opt.2’ or ‘Opt.3’ depending on the posion the module is installed).

The output signal is proporonal to the instrument reading, and it can be fully scaled with direct (posive) or inverted (negave) slopes. The mA output can be congured as an acve loop (the instrument

Opon AO

Output type analog output

Output signals 4/20 mA acve 4/20 mA passive 0/10 Vdc

Max. signal output 22 mA, 10.5 Vdc Min. signal output 0 mA, -50 mVdc

Scaling related to the instruments reading direct or inverse slope

Vexc (terminal A) +13.8 Vdc ± 0.4 Vdc (max. 25 mA) protected against short circuit

Load impedances ≤350 Ohms (in 4/20 mA acve)

≤800 Ohms (in 4/20 mA passive) (with a

24 Vdc external Vexc) (maximum 27 Vdc between terminals ‘B’ and ‘C’)

≥10 KOhms (in 0/10 Vdc)

Accuracy (at 25 ºC) <0.1 % FS

Thermal stability 60 ppm/ºC in mA mode 50 ppm/ºC in Vdc mode

Step response <75 mSeconds + meter step response (0% to 99% signal)

Isolaon 1000 Vdc

Warm-up 15 minutes

Type of terminal plug-in screw terminal pitch 5.08 mm

Installaon allowed at ‘Opt.1’, ‘Opt.2’, ‘Opt.3’

provides the excitaon for the loop ) or as a passive loop (the loop is externally powered).

Up to a maximum of 3 analog output modules can be installed in a single instrument, all outputs isolated between them and isolated from all other circuits.

Modules AO can be ordered pre-installed into a DPF20 digital panel meter, or standalone for delayed installaon, as they do not require soldering or special conguraon.

Module Connecons

Terminal A Vexc Terminal B Signal (mA or Vdc) Terminal C GND

Jumper M closed for ‘mA’ Jumper V closed for ‘Vdc’

Module AO - Analog output

Table 8 - Connecon terminals

Output 4/20 mA acve

A B C

M V

The current loop is powered from the ‘AO’ module

Jumper ‘M’ closed

Signal

Vexc.

Output 4/20 mA passive

A B C

M V

The current loop is powered from an external equipment

Jumper ‘M’ closed

Signal-

Signal+

Opt.3

A B C

Opt.1

A B C

MV MV

Signal

Rear view DPF20

Opt.2

A B C

Power

Output 0/10 Vdc

Table 9 - Connecons for each output mode

M V

Jumper ‘V’ closed

A B C

Com.

Signal

Page 26

DPF20

Frequency, rate, total or period counter

2.2.1 Conguraon menu

Instruction Manual

Congure at menu ‘Mode’ (‘ModE’) the output signal range to ‘4/20 mA’ (‘mA’) or ‘0/10 Vdc‘ (‘Vdc’). Posion for jumpers ‘V’ and ‘M’ must be according to the range selected.

At menu ‘Scaling’ (‘ScAL’) congure the values that dene the two points (‘high’ and ‘low’) of the ‘signal-reading’ slope:

• the lower slope point, dened by ‘Display low’ (‘d.Lo’) and ‘Out- put low’ (‘Ao.Lo’)

• the higher slope point, dened by ‘Display high’ (‘d.hI’) and ‘Out- put high’ (‘Ao.hI’)

Analog output values are shown with ‘XX.XX’ format, acceptable values are ‘0.00’ to ‘10.00’ Vdc for voltage, and ‘0.00’ to ‘20.00’ mA for current.

Reading

100.0

4 mA

-50.0

‘d.Lo’=‘-50.0’

Example - analog output in 4/20 mA, associated to a reading of -50.0 to 100.0

‘d.hI’=‘100.0’

‘Ao.hI’=‘20.00’

‘Ao.Lo’=‘4.00’

Analog output

Mode

Scaling

‘On error’

Factory

conguraon

Version

Mode 4/20 mA

Mode 0/10 Vdc

Display low

Output low

Display high

Output high

in case of error, ‘to_h’ to drive output to high level, ‘to_L’ to drive output to low level

select ‘yES’ to reload the default factory conguraon

2.2.2 Error codes

‘Er.34’ output signal congured to value lower than 0 Vdc or 0 mA

‘Er.35’ output signal congured to a value higher than 10 Vdc or 20 mA

‘Er.36’ congured slope points are not acceptable, such as : ‘d.Hi’=’d.Lo’

‘Ao.Hi’=’Ao.Lo’

(‘Ao.Hi’-’Ao.Lo’)>(’d.Hi’-’d.Lo’)

2.2.3 Factory conguraon

Mode ‘mA’ Scaling Display Low 0 Output Low 4.00 [mA] Display High 9999 Output High 20.00 [mA]

On error to high level(‘to_h’)’

Page 27

DPF20

Frequency, rate, total or period counter

2.3 Module RTU

Instruction Manual

Module RTU provides 1 Modbus RTU communicaons port, to install in DPF20 digital panel meters. Enables protocol funcon ‘4’ (‘Read In- put Registers’) to access the instrument registers (reading value, alarm status, memory of maximum and minimum, setpoint values, ...).

Protocol conguraon is performed from the frontal keypad of the meter, by seng the parameters at the opons conguraon menu (‘Opt.1’, ‘Opt.2’ or ‘Opt.3’ depending on the posion the module is installed).

Opon RTU

Output type Modbus RTU communicaon port

Funcon implemented 4 (Read_Input_Registers)

Addresses 01 to 247

Excepon codes see secon

Registers see secon 2.3.1 Bus RS-485

speed 57.6 Kbps to 600 bps Data format 8n1 (standard), 8o1, 8n2, 8e1 bus terminator not included Isolaon 1000 Vdc Conguraon 3 buon front keypad Temperature operaon from 0 to 50 ºC storage from -20 to +70 ºC Factory conguraon ‘Address 1’ ‘Speed 19.2 Kbps’ ‘Format 8n1’ ‘Decimal point Auto’

Installaon allowed at ‘Opt.1’, ‘Opt.2’, ‘Opt.3’

Up to a maximum of 3 RTU modules can be installed in a single instrument, all modules isolated between them and isolated from all other circuits.

Modules RTU can be ordered pre-installed into a DPF20 digital panel meter, or standalone for delayed installaon, as they do not require soldering or special conguraon.

Module Connecons

Terminal B B signal from RS-485 bus Terminal A A signal from RS-485 bus Terminal G GND

Module RTU - Modbus RTU

Table 11 - Connecon terminals

Opt.3

Opt.1

B A G

Signal

Opt.2

B A G

Power

Rear view DPF20

2.3.1 Accessible registers

0 DISPLAY1_L

1 DISPLAY1_H 16 bits

2 DECIMALS1

Display value

Decimals on display

3 MAXMEM_L

4 MAXMEM_H 16 bits

Memory of maximum

5 MINMEM_L

6 MINMEM_H 16 bits

Memory of minimum

7 SETPOINT1_L

8 SETPOINT1_H 16 bits

Setpoint 1 value

9 SETPOINT2_L

10 SETPOINT2_H 16 bits

Setpoint 2 value

11 SETPOINT3_L

12 SETPOINT3_H 16 bits

Setpoint 3 value

16 bits

same

as display

every 30 seconds

every 2 seconds

999999 to -199999 9999 to -1999

0 to 6

0 to 4

999999 to -199999 9999 to -1999

999999 to -199999 9999 to -1999*

13 STATUS

Alarm status

16 bits

Instrument status

14 a 16 Reserved

Table 10 - Registers accessible via MODBUS-RTU. All registers codied as binary numbers. Negave values are codied in two’s complement.

Reserved

16 x 3 bits

same

as display

bit 0...7 alarm status bit 8...16 instrument status

Not accessible

Page 28

DPF20

Frequency, rate, total or period counter

2.3.2 Conguraon menu

Conguraon

Address

Speed (kbps)

1 to 247

57.6 Kbps ... ... to 600 bps

Instruction Manual

Congure at menu ‘Conguraon’ (‘rtu’), the address value between ‘1’ and ‘247’ at parameter ‘Address’ (‘Addr’), bus speed in kbps at parameter ‘Speed’ (‘bAud’) and data format at parameter ‘Format’ (‘bItS’).

Special tools are grouped inside the ‘Tools’ (‘TooL’) menu.

• the ‘Decimal point’ (‘dP’) menu is provided for compability with ancient hardware that does not support decimal point retransmission. By default, select ‘Automac’ (‘Auto’). If your instrument does nos transmit the decimal point posion, select ‘Manual’ (‘MAnL’) and x the posion of the decimal point manually.

• at the ‘Factory reset’ (‘FAct’) menu, select ‘yes’ to load the default factory conguraon for the instrument.

the ‘Version’ (‘VEr’) menu informs of the current rmware version installed in the module.

Tools

Format

Factory

conguraon

Version

AutomacDecimal point

Manual

8 bits, no parity, 1 stop

8 bits, even parity, 1 stop

8 bits, odd parity, 1 stop

8 bits, no parity, 2 stop

Move with LE

2.3.3 Excepon codes

The Modbus RTU protocol denes the following scenarios when a ‘Master’ is sending a frame to a ‘Slave’:

• the ‘Slave’ device receives the frame correctly and replies with the requested data

• the ‘Slave’ devices detects a CRC error, parity error, or other. and discards the frame without generang a reply frame. The ‘Master’ will detect a ‘TIMEOUT’ condion due to the absence of reply.

• the ‘Slave’ device receives the frame correctly, but replies with an ‘EXCEPTION_CODE’ as it can not process the funcon or register requested.

The ‘EXCEPTION_CODES’ congured in the RTU module are :

Excepon

code

0 ILLEGAL_FUNCTION

1 ILLEGAL_DATA_ADDRESS

Table 12 - Excepon codes

Name Descripon

Requested funcon is not supported

Requested register is not supported

Page 29

DPF20

Frequency, rate, total or period counter

2.3.4 Descripon and example for Modbus RTU registers

Instruction Manual

Contains the display value of the instrument, codied in two registers of 16 bits each. Possible values are from 999999 to -199999. Decimal point posion is codied on register R2.

Example R0=FBF1 (hex) and R1=0009 (hex)

Reading value = 654321

Contains the number of decimals of the display, codied in a single register of 16 bits. Possible values are from 0 to 6.

Example R2=0002 (hex)

Number of decimals = 2 = 6543.21

Contains the memory of maximum reading of the instrument, codied in two registers of 16 bits each. Possible values are from 999999 to -199999. Decimal point posion is codied on register R2.

Example - same example as in R0 and R1 but accessing to R3 and R4.

Contains the memory of minimum reading of the instrument, codied in two registers of 16 bits each. Possible values are from 999999 to -199999. Decimal point posion is codied on register R2.

Example - same example as in R0 and R1 but accessing to R5 and R6.

Contains the setpoint value of alarm 2, codied in two registers of 16 bits each. Possible values are from 999999 to -199999. Decimal point posion is codied on register R2.

Example - same example as in R0 and R1 but accessing to R9 and R10.

Contains the setpoint value of alarm 3, codied in two registers of 16 bits each. Possible values are from 999999 to -199999. Decimal point posion is codied on register R2.

Example - same example as in R0 and R1 but accessing to R11 and R12.

Informaon bit-by-bit, for the alarm status (on / o) and instrument status. See below for a descripon.

Bit 0 Alarm 1 status (0 = inacve, 1 = acve) Bit 1 Alarm 2 status (0 = inacve, 1 = acve) Bit 2 Alarm 3 status (0 = inacve, 1 = acve) Bit 3 a 7 Reserved Bit 8 Display overrange Bit 9 Display underrange Bit 10 Lost communicaon with the main processor Bit 11 to 15 Reserved

Registers R14, R15 and R16

Reserved

Contains the setpoint value of alarm 1, codied in two registers of 16 bits each. Possible values are from 999999 to -199999. Decimal point posion is codied on register R2.

Example - same example as in R0 and R1 but accessing to R7 and R8.

Page 30

DPF20

Frequency, rate, total or period counter

2.4 Module S4

Instruction Manual

Module S4 provides 1 RS-485 ASCII communicaons port, to install in DPF20 digital panel meters. ASCII protocol with ‘master’ - ‘slave’ ar- chitecture. Addressable up to 31 modules. Frames codied in representable ASCII characters (codes 32 to 255), directly visible using ‘hyperterminal’ or similar programs.

Instrument registers are accessible through the RS-485 ASCII port (reading value, alarm status, memory of maximum and minimum, setpoint values, ...).

Opon S4

Output type RS-485 ASCII communicaon port Bus RS-485 Speed 57.6 Kbps to 600 bps Data format 8n1 (standard), 8o1, 8n2, 8e1 Protocol ASCII Architecture ‘master - slave’ Addresses 01 to 31 ‘Broadcast’ address 128 Registers see secon 2.4.1 Isolaon 1000 Vdc Conguraon 3 buon front keypad Temperature operaon from 0 to 50 ºC storage from -20 to +70 ºC Installaon allowed at ‘Opt.1’, ‘Opt.2’, ‘Opt.3’

Up to a maximum of 3 S4 modules can be installed in a single instrument, all modules isolated between them and isolated from all other circuits.

Modules S4 can be ordered pre-installed into a DPF20 digital panel meter, or standalone for delayed installaon, as they do not require soldering or special conguraon.

Module Connecons

Terminal B B signal from RS-485 bus Terminal A A signal from RS-485 bus Terminal G GND

Module S4 - RS-485 ASCII

Table 13 - Connecon terminals

Opt.1

B A G

Opt.2

B A G

2.4.1 Accessible registers

Display values (DISPLAY1, MAXMEM, MINMEM, AL1, AL2, AL3) are codied with a minimum of 6 digits (le zeros are added if necessary), polarity and decimal point.

0 DISPLAY1 Display1 value 1 MAXMEM Memory of maximum 2 MINMEM Memory of minimum 3 AL1 Setpoint 1 value 4 AL2 Setpoint 2 value 5 AL3 Setpoint 3 value 6 STATUS Alarm status

Table 14 - Accessible registers for ASCII protocol.

Contains the display value of the instrument, in ASCII code, including polarity (posive / negave) and decimal point.

Example 1 R0=’+’ ‘0’ ’6’ ‘5’ ‘4’ ‘3’ ‘.’ ‘2’ Display value = 6543.2 Example 2 R0=’-’ ‘0’ ‘0’ ‘0’ ‘4’ ‘.’ ‘5’ ‘2’ Display value = -4.52

Opt.3

B A G

Signal

Rear view DPF20

Contains the value for memory of maximum, in ASCII code, including polarity (posive / negave) and decimal point.

Contains the value for memory of minimum, in ASCII code, including polarity (posive / negave) and decimal point.

Contains the value for alarm 1 setpoint, in ASCII code, including polarity (posive / negave) and decimal point.

Contains the value for alarm 2 setpoint, in ASCII code, including polarity (posive / negave) and decimal point.

Contains the value for alarm 3 setpoint, in ASCII code, including polarity (posive / negave) and decimal point.

Contains the alarm status (on/o).

Bit 0 Alarm 1 status (0 = inacve, 1 = acve) Bit 1 Alarm 2 status (0 = inacve, 1 = acve) Bit 2 Alarm 3 status (0 = inacve, 1 = acve) Bit 3 to 15 Reserved

Power

Page 31

DPF20

Frequency, rate, total or period counter

2.4.2 Conguraon menu

Conguraon

ASCII

Mode

Address

Speed (kbps)

Format

1 to 31

‘Slave’ mode

‘Master’ mode

8 bits, no parity, 1 stop

8 bits, even parity, 1 stop

8 bits, odd parity, 1 stop

8 bits, no parity, 2 stop

Instruction Manual

At menu ‘Conguraon ASCII’ (‘AScI’), congure the instrument at parameter ‘Mode’ (‘ModE’) to work as ‘slave’ or ‘master’, at parameter ‘Address’ (‘Addr’) set the address value from ‘1’ to ‘31’, set the bus speed in kbps at parameter ‘Speed’ (‘bAud’) and set the data format at parameter ‘Format’ (‘bItS’).

When working as ‘master’, the instrument connuously transmits the display value data frame. The local module address is ‘0’. Congure at menu ‘Conguraon Master’ (‘cnF.M’) the ‘Desnaon ad- dress’ (‘d.Add’) parameter from ‘1’ to ‘31’ or use value ‘128’ for a broadcast message. At parameter ‘Frequency’ (‘FrEq’) select the how oen the frame with the reading value will be transmied.

Special tools are grouped inside the ‘Tools’ (‘TooL’) menu.

•the ‘Legacy mode’ (‘LEG’) parameter is provided to maintain compability with instruments with older communicaon protocols. Select ‘on’ to acvate this mode.

• the ‘Answer delay’ (‘AnS.d’) parameter applies only to ‘Slave’ mode. The local module delays the answer frame. Congure for applicaons where the ‘Master’ needs addional me to switch between ‘transmit’ and ‘receive’ modes. Enter a numeric value between ‘0’ and ‘1000’ mSeconds.

• at the ‘Factory reset’ (‘FAct’) menu, select ‘yes’ to load the default factory conguraon for the instrument.

the ‘Version’ (‘VEr’) menu informs of the current rmware version installed in the module.

Conguraon

‘Master’

Tools

Desnaon

address

Frequency

Decimal point

Legacy mode

Answer delay

Factory

conguraon

1 to 31 128 for ‘broadcast’

Automac

Manual

0.1 seconds

0.5 seconds 1 seconds 5 seconds

15 seconds 60 seconds

use key ‘LE’ to select

delay for answers, from 0 to 1000 mSec.

2.4.3 Factory conguraon

Conguraon ASCII Mode Slave Address 1 Speed (‘bAud’) 19.2 Kbps

Format (‘bItS’) 8n1

Conguraon ‘Master’ Desnaon address 31 Frequency 0.5 seconds Tools Decimal point Auto Legacy O Answer delay 0 mSeconds

Version

Page 32

DPF20

Frequency, rate, total or period counter

2.4.4 Frame types

Instruction Manual

The ASCII protocol denes the following frames:

• Frame ‘read’ (‘RD’). Id code 36. Request data frame. The requested register is indicated into the ‘REG’ byte (‘Header’ secon).

• Frame ‘answer’ (‘ANS’). Id code 37. Response frame to a request data frame. The requested register is indicated into the ‘REG’ byte’ (‘Header’ secon). Data of the requested register is indicated into data bytes ‘D0’ to ‘Dn’ (‘Data’ secon).

• Frame ‘error’ (‘ERR’). Id code 38. Response frame to a request data frame. Indicates that an error has occurred. Error code is codied into the ‘REG’ byte (‘Header’ secon).

• Frame ‘ping’ (‘PING’). Id code 32. Used to conrm the existence of the remote instrument.

• Frame ‘pong’ (‘PONG’). Id code 33. Response to a ‘ping’ frame. It conrms the existence of the remote instrument.

2.4.5 Frame structure

Header Data Trail

STX ID RSV FROM TO REG RSV LONG D0 D1 ... Dn CRC ETX

2 x 32 x x x 32

0 1 2 3 4 5 6 7 8 9 ... n+7 n+8 n+9

Protocol frames have a structure made of ‘Header’, ‘Data’ and ‘Trail’.

Secon ‘Header’

Contains the start byte (‘STX’), the frame idener (‘ID’), the origin address (‘FROM’) and the desnaon address (‘TO’), the register id (‘REG’) and the length (‘LONG’) of the ‘Data’ secon.

Secon ‘Data’

Contains data for the requested register (‘REG’).

n+1 [data] x 3

Secon ‘Trail’

Contains the ‘CRC’ code and the end of frame byte (‘ETX’).

‘Real value’ and ‘Frame value’

To use representable ASCII values, the real values are codied before being sent into the frame. The following denions apply :

• ‘real value’ is the value of the eld without codicaon

• ‘frame value’ is the value of the eld, codied

Field Descripon Size Posion Real value Frame value

STX Start of frame 1 byte 0 does not apply 2

ID Frame type 1 byte 1 (see secon 2.4.4) real_value

RSV Reserved 1 byte 2 0 32

FROM Origin address 1 byte 3 0 (‘Master’) / 1 to 31 (‘Slave’) 32 + real_value

TO Desnaon address 1 byte 4 0 (‘Master’) / 1 to 31 (‘Slave’)

128 (‘broadcast’)

REG Register idencaon 1 byte 5 (see secon 2.4.1) 32 + real_value

RSV Reserved 1 byte 6 0 32

LONG Length of ‘Data’ secon 1 byte 7 n (between 0 and 32) 32 + real_value

D0 … Dn Data n bytes 8 to n+7 number 0 to 9

decimal point polarity (+/-)

CRC CRC calculaon 1 byte n+8 does not apply (see secon 2.4.8)

ETX End of frame 1 byte n+9 does not apply 3

Table 15 - Descripon of the bytes for the ASCII frame

32 + real_value

ASCII code of the number (48 to 57) ASCII code of decimal point (46) ASCII code of ‘+’ (43) ASCII code of ‘-’ (45)

2.4.6 Error codes

Frames ‘ERR’ contain within the ‘REG’ eld, the error code. Available error codes are :

error 1 unknown register

error 2 display overrange

error 3 display underrange

error 4 CRC error

error 5 internal error

Page 33

DPF20

Frequency, rate, total or period counter

2.4.7 Frame examples

Frames ‘RD’ (36) and ‘ANS’ (37)

Instruction Manual

Example - ‘Master’ (address ‘0’) requests the value of register ‘0’ (display value) to the ‘Slave’ at address ‘28’ (‘RD’ frame) and the ‘Slave’ replies to the ‘Master’ with a reply frame (‘ANS’ frame) containing the requested data (765.43).

Header Trail

STX ID RSV FROM TO REG RSV LONG CRC ETX

2 36 32 32 60 32 32 32 58 3

Start RD --- 0 28 0 --- 0 CRC Stop

Header Data Trail

STX ID RSV FROM TO REG RSV LONG D0 D1 D2 D3 D4 D5 D6 D7 CRC ETX

2 37 32 60 32 32 32 40 43 48 55 54 53 46 52 51 15 3

Start ANS --- 28 0 0 --- 8 +0765.43 CRC Stop

*Instruments with 4 digits also send reading values formaed with 6 digits : value -321.5 is transmied as -00321.5

Frames ‘ERR’ (38)

Example - ‘Slave’ at address ‘11’ replies to the ‘Master’ (address ‘0’) with an error frame (‘ERR’ frame) indicang that the requested register number is unknown (‘UNKNOWN_REGISTER’, error code ‘1’). The

Header Trail

STX ID RSV FROM TO REG RSV LONG CRC ETX

2 38 32 43 32 33 32 32 46 3

Start ERR --- 11 0 1 --- 0 CRC Stop

error code is codied into the ‘REG’ byte. For a list of error code see secon 2.4.6.

Frames ‘PING’ (32) and ‘PONG’ (33)

Example - ‘Master’ (address ‘0’) requests conrmaon of existence to the ‘Slave’ at addrress ‘22’ (‘PING’ frame) and the ‘Slave’ replies to the ‘Master’ with a ‘PONG’ frame.

Header Trail

STX ID RSV FROM TO REG RSV LONG CRC ETX

2 32 32 32 54 32 32 32 52 3

Start Ping --- 0 22 0 --- 0 CRC Stop

Header Trail

STX ID RSV FROM TO REG RSV LONG CRC ETX

2 33 32 54 32 32 32 32 53 3

Start Pong --- 22 0 0 --- 0 CRC Stop

2.4.8 CRC calculaon

The ‘frame value’ for the CRC byte is calculated applying a XOR funcon to the ‘frame value’ (see secon 2.4.5) of all bytes in secons ‘Header’ and ‘Data’, from byte ‘0’ (‘STX’) to the last data byte (‘Dn’).

• if the calculated CRC value is lower than ‘32’, it is normalized by applying the ‘one’s complement’ funcon .

CRC0=STX ^ ID ^ RSV ^ FROM ^ TO ^ REG ^ RSV ^ LONG ^ D0 ^...^ Dn

• if (CRC0<32) -> CRC=!CRC0 (one’s complement funcon)

• if (CRC0>31) -> CRC=CRC0

//example of CRC calculaon in C language

int8 Calculate_CRC(int8 CRC_Posion)

{

int8 i,CRC=0;

for(i=0;c<CRC_Posion;c++)

{

crc=crc ^ frame[i];

}

if(crc<32) CRC=~CRC;

return(CRC);

}

Page 34

DPF20

Frequency, rate, total or period counter

Instruction Manual

2.5 Module S2

Module S2 provides 1 RS-232 ASCII communicaons port, to install in DPF20 digital panel meters. Protocol specicaons are the same as with module S4 (see secon 2.4), with only dierence that the physical bus is RS-232 instead of RS-485.

S2 modules allow for point-to-point communicaon over RS-232 and also allow for mulnode communicaon over RS-232 using a ‘Daisy-Chain’ type of connecon.

Terminals RX1 and TX1 are for connecon to the RS-232 bus. Terminals RX2 and TX2 are for RS-232 mulnode connecon. Frames received on RX1 with desnaon address dierent than the local instrument’s address, will be retransmied over the TX2 terminal. In a similar way, frames received from RX2 with desnaon address other than the local address, will be retransmied over TX1 terminal.

Up to a maximum of 3 S4 modules can be installed in a single instrument, all modules isolated between them and isolated from all other circuits.

Modules S2 can be ordered pre-installed into a DPF20 digital panel meter, or standalone for delayed installaon, as they do not require soldering or special conguraon.

Opon S2

Output type RS-232 ASCII communicaon port Bus RS-232 Speed 57.6 Kbps to 600 bps Data format 8n1 (standard), 8o1, 8n2, 8e1 Protocol ASCII Architecture ‘master - slave’ Addresses 01 to 31 ‘Broadcast’ address 128 Registers see secon 2.4.1 Isolaon 1000 Vdc Conguraon 3 buon front keypad Temperature operaon from 0 to 50 ºC storage from -20 to +70 ºC Installaon allowed at ‘Opt.1’, ‘Opt.2’, ‘Opt.3’

2.6 Modules R2, R4 and R6

Modules R2, R4 and R6 provide 2, 4 and 6 relay outputs, to install in DPF20 digital panel meters.

Conguraon is performed from the frontal keypad of the meter, by seng the parameters at the ‘Opt.1’ conguraon menu (not from the alarm conguraon menu (‘ALr.1’, ‘ALr.2’ o ‘ALr.3’) of the instrument).

The menu allows to congure the setpoint, hysteresis, independent acvaon and deacvaon delays, and a second setpoint to create alarm windows.

Only 1 modules R2, R4 or R6 can be installed in a single instrument, as the are not compable with themselves (2 modules R2 are not accepted) and are not compable with modules R1, T1 or SSR.

Modules R2, R4 and R6 are isolated against all other instrument circuits.

Modules R2, R4 and R6 can be ordered pre-installed into a DPF20 digital panel meter, or standalone for delayed installaon, as they do not require soldering or special conguraon.

Opon R2, R4, R6

Output type relay (2, 4 and 6 relays) Relay type 3 contacts (NC, NO, common) Maximum current 6 A per relay (resisve load) Maximum voltage* 250 Vac connuous

* terminals approved for 300 V (as per UL1059, groups B and D) and 160 V (as per VDE at CAT-III and polluon degree 3).

Isolaon 2500 Ve Type of terminal plug-in screw terminal

pitch 5.08 mm Installaon allowed at ‘Opt.1’ Module R2 occupies Opt.1 (2 relays) Module R4 occupies Opt.1 and Opt.2 (4 relays) Module R6 occupies Opt.1, Opt.2 and Opt.3 (6 relays)

Module Connecons

Module S2 - RS-232 ASCII

Table 16 - Connecon terminals

Opt.1

ABCDE

Opt.3

ABCDE

Signal

Rear view DPF20

Terminal A Tx2 Terminal B Rx2 Terminal C Tx1 Terminal D Rx1 Terminal E GND

Opt.2

ABCDE

Power

Relay Common

Normally Open (NO) Normally Closed (NC)

relay 1 A B C relay 2 D E F relay 3 G H I relay 4 J K L relay 5 M N O relay 6 P Q R

Table 17 - Connecon terminals

Opt.1

A B C D E F

Opt.3

MNOPQR

Signal

Opt.2

G H I J K L

Power

Rear view DPF20

Page 35

DPF20

Frequency, rate, total or period counter

2.6.1 Conguraon menu

Alarm 1

Acve

Instruction Manual

To congure alarm 1, access the ‘Alarm 1’ (‘ALr1’) menu and congure the following parameters : To congure alarms 2, 3, etc, access the corresponding menu entries.

Type of alarm

Setpoint

Hysteresis

Delay 0

Delay 1

Setpoint 2

Menu for Alarm 2, at modules R2, R4 and R6

Menu for Alarm 3, at modules R4 and R6

Menu for Alarm 4, at modules R4 and R6

Menu for Alarm 5, at modules R6

Menu for Alarm 6, at modules R6

• select ‘Acve’ (‘Act’) to ‘on’

• at ‘Alarm type’ (‘TypE’) select the maximum alarm (‘MAX’) or

minimum alarm (‘MIn’). The maximum alarm (or type alarm) acvates when display value is higher (or lower) than the setpoint value.

• at ‘Setpoint’ (‘SEt’) enter the alarm acvaon value.

• at ‘Delay 0’ (‘dEL.0’) assign the delay to be applied before alarm acvaon. The acvaon delay starts counng when the setpoint value is passed. Congurable from 0.0 to 99.9 seconds.

• at ‘Delay 1’ (‘dEL.1’) assign the delay to be applied before alarm deacvaon. The deacvaon delay starts counng when the setpoint value plus the hysteresis value, is passed. Congurable from

0.0 to 99.9 seconds.

• to acvate the second setpoint, acvate ‘Setpoint 2’ (‘SEt2’) to ‘on’ and then congure the desired setpoint value. Second setpoint allows for windowed alarms. The rst setpoint acvates the alarm, and the second setpoint deacvates the alarm (conguraon for ‘Alarm as maximum’ type of alarm). Second setpoint must always be higher in value than the rst setpoint.

Factory

conguraon

Version

2.6.2 Factory conguraon

Factory conguraon for alarms 1, 2, 3, 4, 5 and 6 ‘Acve on’ ‘Type de maxima’ ‘Setpoint 1 1000’ ‘Setpoint 2 2000’ ‘Setpoint 3 3000’ ‘Setpoint 4 4000’ ‘Setpoint 5 5000’ ‘Setpoint 6 6000’ ‘Hysteresis 0 counts’ ‘Acvaon delay 0.0 counts’ ‘Deacvaon delay 0.0 seconds’ ‘Setpoint 2 O’

Page 36

DPF20

Frequency, rate, total or period counter

3. How to open and close

3.1 How to open the housing

A. Locate the clips

Locate the 4 clips (A B C D). Clips are covered by the front lter.

Clips can be seen when looking from the rear of the instrument, just below the front lter.

Instruction Manual

A.1

B D

A.2

D B

C A

A.3

B. How to unclip one clip

Place a at screw driver at the rst clip. Insert rmly unl the end of the clip space, and then turn gently the screwdriver clockwise approx. 45º (while sll pushing against the clip). The front lter will ‘move up’ and unclip itself. Clip is unclipped when the front lter corner moves slightly to the front.

B.1

B.2

B.3

Screw driver placed Screw driver turned

C. Repeat with all clips

Repeat for remaining 3 clips. All 4 clips are now unclipped.

Front lter is slightly moved to the front on each corner. It can now be removed by hand.

C.1 C.2

D B

C A

Unclipped

UnclippedClipped

C.3

Page 37

DPF20

Frequency, rate, total or period counter

Instruction Manual

3.2 How to close the housing

A. Locate the clips

Locate the 4 clips (A B C D) at the housing (image A.1) and the 4 mang clips at the lter (image A.2). With the instrument inside the housing, face the front lter against the housing (do not clip yet). Do not press the rear terminals with your hand, as the instrument would force the lter outwards.

A.1

D B

Front lter

Internal View

C A

A.3A.2

B. Fit corner ‘X’ and clip ‘A’

Fully insert corner ‘X’ into the housing. See at image B.2 that the lter is not yet clipped : only corner ‘X’ is completely ed. Corner ‘Y’ can be also ed or not ed (it is not important). With corner X ed and rmly pressed (it must remain ed), press clip ‘A’ and it will clip (you will hear a clear ‘snap’).

B.1

Corner ‘Y’ can be ed or not ed

B.3B.2

Corner ‘X’ ed

‘X’

Press ‘A’

Corner ‘X’ ed

C. Clip remaining clips ‘B’, ‘C’ & ‘D’

Sll press rmly corner ‘X’ unl all four clips are clipped. You can release your nger from clip ‘A’ as clip ‘A’ will not unclip once it is clipped. Press on clip ‘B’ unl it clips (you will hear a clear ‘snap’). Then press on clips ‘C’ and ‘D’ (you will hear a clear ‘snap’ on each case).

C.1

Press ‘B’

Corner ‘X’ ed

C.2 C.3

Press ‘D’

1st Press ‘C’

Corner ‘X’ ed

Page 38

DPF20

Frequency, rate, total or period counter

Instruction Manual

Page 39

DPF20

Frequency, rate, total or period counter

Instruction Manual

Page 40

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA…Of Course!

Shop online at omega.com

TEMPERATURE

Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies Wire: Thermocouple, RTD & Thermistor Calibrators & Ice Point References Recorders, Controllers & Process Monitors Infrared Pyrometers

PRESSURE, STRAIN AND FORCE

Transducers & Strain Gages Load Cells & Pressure Gages Displacement Transducers Instrumentation & Accessories

FLOW/LEVEL

Rotameters, Gas Mass Flowmeters & Flow Computers Air Velocity Indicators Turbine/Paddlewheel Systems Totalizers & Batch Controllers

pH/CONDUCTIVITY

pH Electrodes, Testers & Accessories Benchtop/Laboratory Meters Controllers, Calibrators, Simulators & Pumps Industrial pH & Conductivity Equipment

DATA ACQUISITION

Communications-Based Acquisition Systems Data Logging Systems Wireless Sensors, Transmitters, & Receivers Signal Conditioners Data Acquisition Software

HEATERS

Heating Cable Cartridge & Strip Heaters Immersion & Band Heaters Flexible Heaters Laboratory Heaters

ENVIRONMENTAL MONITORING AND CONTROL

Metering & Control Instrumentation Refractometers Pumps & Tubing Air, Soil & Water Monitors Industrial Water & Wastewater Treatment pH, Conductivity & Dissolved Oxygen Instruments

M5675/0818